condition mean min max 4 h after light 1.3086563333333334 0.624359 2.19478 8 h after light 0.9822097333333334 0.0309422 1.95269 12 h after light 0.7540830000000001 0.353393 1.02858 4 h after dark 1.069162 0.863556 1.18712 8 h after dark 4.05452 2.63876 5.91774 12 h after dark 12.3251 9.6331 17.0328